
3-18 Configuring Your System
The system board jumpers enable you to set specific operating parameters for your
system. A jumper is a small plastic-encased conductor (shorting plug) that slips over
two jumper pins.
Figure 3-1 shows the location of the system board jumpers. Table 3-10 lists the system
board jumpers and their factory default settings.
Figure 3-1. System Board Jumpers
Reserved
J21
Password Clear
Reserved
Reserved
CPU Speed
Model Type
CMOS Clear
Reserved
FLASH Code
CPU Speed
Reserved
AB
J1A J1B
J2A
J2B
J3A
J4A
J5A
J6A
J7A
J3B
J4B
J5B
J6B
J7B
CPU Speed
1
2
3
1
2
3
CPU Speed
CPU Speed
Reserved
Model Type
12 3
J27
J26
J25
J29
Model Type
123
J52
Reserved
1
2
3
J28
Model Type
123
J54
Model Type
1
2
3
J53
Model Type
J51
1
2
3
CPU 2
J50
1
2
3
CPU 1
J49
1
2
3
HD Activity
J612
123
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